"TBBS (The Bread Board System) was originally sold by eBert Personal
Computers. the author of the software was Phil Becker and was writeen in
100% machine language, for the TRS-80 Model I computer. Bought version
1.1 in December of 1982."

"A year or so later, Ebert (can't remember his first name) was no longer
associated with TBBS, the company was now called eSoft and was all Phil
Beckers. Around 1984 they came out with a CP/M version and an MS-DOS
version, both still in 100% ML. A year or so later, the TRS-DOS and CP/M
version were dropped." - Tom Whittenburg